Object properties equal undefined by default
Clean up variable names

* vcount -> rows
* dcount -> page
Added findBy<field> and getBy<field> for indexes
Clean up finders
Add tests for new finder methods
Updated 2.1 features in readme
Merge pull request #16 from mastfish/improve-find-by

Added findBy<field> and getBy<field> for indexes
Merge pull request #14 from leahciMic/clean-up

Cleaning things up